Blow-out shoe



L. R. MOORE.

BLOW-OUT SHOE.

APPLICATION FILED ocT. 2a. Isle.

1,364,447. Patented .1444,1921'.

Jhr/m PATENT OFFICEc LEE R. MOORE, OF DALLAS, TEXAS.

BLOW-OUT SHOE.

Specification of Letters'Patent.

Patented Jan. 4, r1921.

yApplication 1ed'-0ctober 28, 1918. Serial No. 259,952.

To all w kom t may concern Be it known that T, R. Moenia, a citizen ofthe United States, residing at `Dallas, inthe county of Dallas and Stateof ner tubes of pneumatic tires.

The particular feature of the invention resides in .a means of fasteningthe shoe without the` use of laces or metallic connections and involvinga soft pliable but posi- "i tive fastening which will securely hold theshoe in place and also lie fiat within the casing which is verydesirable.

In carrying out the invention a split sleeve formed of layers of tirefabric is provided with an internal tongue lying between the edges ofthe sleeve and the tube when said sleeve is placed thereon. A fastening`strip is secured along each edge portion of the sleeve so as to overhangthe same, One of these strips is provided with elongated spaced eyeswhile the other strip is provided with T-shaped lugs formed integralwith and of the same material as the strip. The shanks of the lugs havea width substantially the same as the length of each eye, so that whenthe lugs are engaged in the eyes the heads will extend beyond each endof the eyes and the shoulders formed at the intersections of the headsand shanks will prevent said heads from withdrawing from the eyes. It isunderstood that in inserting the lugs in the eyes one end must first bepassed through the eyes and the other end folded so as to also passthrough, after which the heads may be straightened out.

A fastening of this nature is efficiently and quickly operated both infastening and unfastening.

The invention will be more readily under stood from a reading of thefollowing specification and by reference to the accompanying drawings,in which an example of the invention is illustrated, and wherein- Figurel illustrates a portion of an inner tube showing a shoe constructed inaccordance with this invention and fastened on the tube,

Fig. 2 is a side elevation of the same parts with a portion of casingshown in section and elevation,

Fig. 3 is a cross sectional view of the tube and shoe and a portion ofthe tire casing, and

Fig. 4l is a perspective view of one end of the shoeshowing the'sameunfastened.

In the drawings' the'numeral l designates an elongated split sleevecomposed of superimposed layersV of tire fabric or other suitablematerial terminating at each end in stepped order, the innermost' layerbeing longest. The layers terminate iiush 'along the `split edges of thesleeve. A tongue 2 composed of superimposed layers is disposed withinthe sleeve and' extends across the gap between the edges.

`Fastening strips 3 and l respectively are disposed along thelongitudinal edges of the sleeve and secured by stitches 3 and 4E.

The stitches 3 pass through the layers of the sleeve and the uppermostlayer. of .the tongue, while the stitches el merely pass through thesleeve. lVhen the sleeve is placed about a tube the tongue 2 protectsthe tube from the stitches 4f, and the inner layer of the tongueprotects said tube from 'the stitches 3. Thus the tube contacts onlywith the fabric of the sleeve and tongue. l

The strip 3 overhangs the edge of the sleeve and is provided with slotsor elongated eyes 5 spaced longitudinally yof the strip. The strip alalso overhangs the edge of the sleeve and has its overhanging portionformed into T shaped lugs 6 Vhaving elongated shanks 7 attaching them tothe bodv of the strip. The shanks are wide enough tb substantially fillthe eyes so that the heads of the lugs will extend on each side of saideyes as is shown in Fig. l. The shoulders formed at the intersection ofthe heads and the shanks bear on the strip 3 and prevent withdrawal ofthe lugs. In fastening the strips together one end of the head of a lugis first passed through the corresponding eye and then the other end isdoubled over and passed through the eye which may be accomplished owingto the flexible nature of the material. After the head is completelythrough the eye it is flattened out, as shown in Fig. l. The elongatedshank 7 permits a free manipulation of the lugs and fa.- cilitates thefastening. When it is desired to unfasten the shoe the operation isreversed. It will be seen that the heads of the lugs lie flat on thestrip 3 and when the shoe is in the casing and subjected to the airpressure of the tube the lugs cannot curl up or become displaced. Thereis no lace or fastening member to become broken. The shoe may be quicklyapplied and fastened and is inexpensive. The strips 3 and 4 may be madeof tire fabric the same as the sleeve.

The elongated shanks make the sleeve adjustable in diameter. All innertubes are not exact to size; for instance one 4 inch tube will be foundto be larger than another 4 inch tube, so that if the elongated ShanksWere not provided the sleeve would buckle on undersized tubes and wouldhave to be stretched for oversized tubes. Further the Shanks permit thesleeve edges to be brought together and overlapped so as to reduce thediameter of the sleeve and compress the tube to facilitate inserting inthe casing.

'Vhat I claim is- A blow out shoe for inner tubes comprising a splitsleeve composed of a plurality of superposed layers terminating at eachend in stepped order with the inner most layer, the longest, a tongueadapted to bridge the gap in the split sleeve located on the interior ofthe sleeve and composed of superposed layers, fastening strips at thesplit edges ofthe sleeve, a line of stitching passing through one ofsaid strips, the sev eral layers of the sleeve and the inner layer ofthe tongue and prevented from coming in Contact With the inner tube bythe outer layer of the tongue; a second line of stitching going throughthe other strip and the several layers of the sleeve, the free end ofthe tongue adapted to cover the latter line of stitching, said stripsprovided With interlocking portions for maintaining the strips" fromspreading beyond a predetermined distance and the interlocking portions`being adapted to slide upon each other to admit contraction of thesplit sleeve Without bulking said strips.

In testimony whereof I affix my signature LEE R. MOORE.

